Science

Wednesday, 7 October 2026
13 facts about tears
13 facts about tears
Multipurpose liquid
Associated with emotions, tears are a product of lacrimal glands, found in the eyes of most terrestrial vertebrates. Although their primary function i ...

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Milky Way
The disk of dark matter surrounding the Milky Way is about 2 million light-years in diameter.
It interacts with visible matter only gravitationally and remains invisible and undetectable in any other way. It is estimated that 90 percent of the mass of the Milky Way is dark matter.
Moon
Up to 14.000 square kilometers of the Moon's surface may remain in perpetual shadow.
Water is most likely to be present in these places.
Aurora
Australians prefer to use the more accessible term - "southern lights" instead of Aurora Australis.
Cosmos
The smallest galaxy discovered so far is Segue 2, located adjacent to the Milky Way.
It is 114.000 light years away from us and is approaching at a speed of 40 km/s towards us. It is ma ...
Earth
Although it's hard to believe, the Earth's crust consists of 47 percent oxygen.
It is trapped in the soil in the form of various oxides, the most common of which are: silicon dioxide, aluminum oxide, calcium oxide, magnesium oxide, and iron oxide.
Brain
Docosahexaenoic acid (DHA) plays a key role in the proper functioning of the brain.
It is an organic chemical compound from the group of omega-3 fatty acids, therefore the consumption of polyunsaturated fatty acids is extremely important.
Mushrooms
Fungal reproduction is complex, reflecting differences in lifestyle and genetic composition.
It is estimated that a third of all fungi reproduce using more than one method of reproduction. Most ...
Snow
It is highly likely that no two snowflakes exist and have never existed exactly alike.
Snow crystals are almost perfectly symmetrical, although most are irregular in many respects. The ru ...
Mushrooms
Mushrooms are of great importance in the development of civilization, due to their key role in making bread and wine.
Many species of fungi are used in food production: bread, spirits, cheeses. Some of them, like Penic ...
Titan
In June 2027, NASA plans to send a Dragonfly mission to Titan.
It is to reach the surface of the moon in 2036 and, among other things, analyze the organic compound ...